Mine pressure sensor capable of reducing mechanical damage
By introducing the design of transfer rods and safety blocks into the ore pressure sensor, the problem of sensors being susceptible to mechanical damage when monitoring ore pressure is solved, and the safety and maintenance cost of the sensor are reduced.
Patent Information
- Application Number
- CN202422317629.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Existing ore pressure sensors are susceptible to direct external deformation when monitoring ore pressure, resulting in mechanical damage and safety hazards.
A mineral pressure sensor is designed to transmit deformation to the sensor through a transfer rod instead of acting directly on the sensor and separate to absorb kinetic energy when the safety block is subjected to excessive force.
It effectively reduces the risk of mechanical damage to the sensor, ensures the safety of the sensor, and can be replaced after the safety block is damaged to reduce maintenance costs.
Smart Images
Figure CN223037291U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mine pressure sensors, and more specifically, to a mine pressure sensor for reducing mechanical damage. Background Art
[0002] During the process of ore body mining, the formation of underground space destroys the original stress balance of the rock mass, resulting in the redistribution of rock mass stress, and then generating pressure on the working face, roadway and surrounding rock. This kind of pressure is usually the force generated by the rock movement during the mining process on the surrounding rock of the support, which is called mine pressure, abbreviated as mining pressure. The force generated by mining pressure is strong and destructive, which will affect the mining operation and pose potential safety hazards. In order to eliminate this kind of hidden danger, it is necessary to monitor the mining pressure in order to make timely responses and avoid the development of major accidents. The sensors in the prior art directly measure the amount of deformation, which makes the external deformation directly act on the sensor, making the sensor at risk of being damaged. Summary of the Utility Model
[0003] The utility model provides a mine pressure sensor for reducing mechanical damage, which can transmit the deformation through a transmission rod and will not directly act on the sensor, making the sensor safer.
[0004] To achieve the above object, the utility model provides a mine pressure sensor for reducing mechanical damage, including:
[0005] A first housing, wherein a sensor and an actuating member are fixed in the first housing. The actuating member includes a rod body, the first end of the rod body is connected to the sensor, and a docking interface is arranged on the outer side of the first housing.
[0006] A conversion assembly, which includes a second housing and a transmission rod. The second housing is configured with a docking end face that is connected to the first housing. The first end of the transmission rod extends out from the docking end face, and the second end of the transmission rod extends out from the opposite face of the second housing to the docking end face. A safety block for pressing against the rod body is arranged at the position of the first end of the transmission rod. When the force received by the safety block is greater than a set value, the safety block is separated from the transmission rod.
[0007] Furthermore, the transmission rod is hollow and the first end of the transmission rod is open, and the safety block is arranged inside the transmission rod.
[0008] Furthermore, a first spring that cooperates with the transmission rod is arranged inside the second housing, and the first spring applies a force to the transmission rod that deviates from the docking end face.
[0009] Further, a limiting block is provided on the transfer rod, the first spring is sleeved on the transfer rod, and one end of the first spring abuts against the limiting block.
[0010] Further, a limiting rib is provided on the outer part of the transfer rod along the length direction, and a first channel for the transfer rod and the limiting rib to pass through is provided on the second housing.
[0011] Further, a sealing plate is provided in the second housing corresponding to the docking end face, and a second channel for the transfer rod and the limiting rib to pass through is provided on the sealing plate.
[0012] Further, the sensor includes a bracket, the bracket is fixed in the first housing, the bracket is hollow, a sensing core is slidably arranged in the bracket, the first end of the sensing core is fixed to the rod body, the second end of the sensing core is connected with a second spring, and one end of the second spring away from the sensing core abuts against the inner wall of the end of the first housing.
[0013] Further, the sensor further includes a sensing coil, the sensing coil is wound on the bracket, and the sensing coil is distributed along the inner wall of the first housing.
[0014] Further, a maintenance cover is provided at the end of the first housing corresponding to the second spring, and the second spring abuts against the maintenance cover.
[0015] Further, both the first housing and the second housing are cylindrical, a docking edge is provided on the docking port of the first housing extending radially outwards, and a fixing edge in contact with the docking edge is provided on the docking end face of the second housing extending radially outwards.
[0016] Applying the technical solution of the present invention, a mine pressure sensor for reducing mechanical damage is provided, including: a first housing, a sensor and an actuating component are fixed in the first housing, the actuating component includes a rod body, the first end of the rod body is connected with the sensor, and a docking port is provided on the outer side of the first housing; a conversion component, the conversion component includes a second housing and a transfer rod, the second housing is constructed with a docking end face connected to the first housing, the first end of the transfer rod extends out from the docking end face, the second end of the transfer rod extends out from the opposite face of the second housing to the docking end face, a safety block for abutting against the rod body is provided at the position of the first end of the transfer rod, and in the case that the force received by the safety block is greater than a set value, the safety block is separated from the transfer rod.
[0017] During mine pressure monitoring, the set conversion component is used to directly contact the outside world and transmit the dynamic changes of the outside world to the sensor, enabling the sensor to normally detect the required physical quantities. When the force received by the safety block is greater than the set value, that is, when encountering a change sufficient to damage the sensor, the safety block at the end of the transmission rod will deform or separate to absorb kinetic energy, so that the kinetic energy received by the sensor is within a safe range, thereby ensuring the safety of the sensor. After the safety block is damaged, a new conversion component can be replaced, reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:
[0019] Figure 1 The structural schematic diagram of the mine pressure sensor for reducing mechanical damage provided by the embodiment of the present utility model is shown;
[0020] Figure 2 Shows Figure 1 The enlarged view at A in.
[0021] Among them, the above-mentioned drawings include the following reference numerals:
[0022] 100, the first housing;
[0023] 110, the maintenance cover;
[0024] 200, the bracket;
[0025] 210, the induction coil;
[0026] 220, the induction core;
[0027] 221, the second spring;
[0028] 222, the rod body;
[0029] 300, the second housing;
[0030] 310, the plugging plate;
[0031] 320, the transmission rod;
[0032] 321, the limiting convex rib;
[0033] 322, the first spring;
[0034] 323, the safety block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way constitutes a limitation on the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0036] As Figures 1 to 2 shown, an embodiment of the present utility model provides a mine pressure sensor for reducing mechanical damage, including:
[0037] A first housing 100, in which a sensor and an actuating member are fixed. The actuating member includes a rod body 222. The first end of the rod body 222 is connected to the sensor, and a docking interface is provided on the outer side of the first housing 100;
[0038] A conversion assembly, which includes a second housing 300 and a transmission rod 320. The second housing 300 is configured with a docking end face that is connected to the first housing 100. The first end of the transmission rod 320 extends out from the docking end face, and the second end of the transmission rod 320 extends out from the opposite face of the second housing 300 to the docking end face. A safety block 323 that abuts against the rod body 222 is provided at the position of the first end of the transmission rod 320. In the case where the force received by the safety block 323 is greater than a set value, the safety block 323 is separated from the transmission rod 320.
[0039] During mine pressure monitoring, the provided conversion assembly is used to directly contact the outside world. The dynamic changes of the outside world are transmitted to the sensor through the transmission rod 320 and the safety block 323, so that the sensor can normally detect the required physical quantity. In the case where the force received by the safety block 323 is greater than a set value, that is, when encountering a change sufficient to damage the sensor, the safety block 323 at one end of the transmission rod 320 will deform or separate to absorb kinetic energy, so that the kinetic energy received by the sensor is within a safe range, thereby ensuring the safety of the sensor. After the safety block 323 is damaged, a new conversion assembly can be replaced, reducing the maintenance cost.
[0040] Wherein, a first spring 322 that cooperates with the transmission rod 320 is provided in the second housing 300, and the first spring 322 applies a force to the transmission rod 320 away from the docking end face. The first spring 322 provides power for the reset of the transmission rod 320, so that the transmission rod 320 pressed into the second housing 300 can return to the fully extended state.
[0041] Specifically, a limit block is provided on the transfer rod 320, the first spring 322 is sleeved on the transfer rod 320, and one end of the first spring 322 abuts against the limit block. The first spring 322 applies an elastic force to the transfer rod 320 through cooperation with the limit block.
[0042] As Figure 2 shown, wherein the transfer rod 320 is hollow and the first end of the transfer rod 320 is open, and the safety block 323 is arranged inside the transfer rod 320. This can make the device structure compact. Both ends of the safety block 323 are respectively connected to the inner wall of the transfer rod 320 through thin rods. When the safety block 323 is subjected to excessive force, the thin rods break at the position. The thin rods can be made of iron wire, rivets, etc.
[0043] After the safety block 323 is separated from the transfer rod 320, the hollow space inside the transfer rod 320 enables the rod body 222 to continue to extend inward, ensuring that there is no hard contact between the decoupled rod body 222 and the transfer rod 320.
[0044] As Figure 1 shown, in order to install the transfer rod 320 more smoothly and also to reduce the swing of the transfer rod 320 so that the transfer rod 320 can move in a straight line direction, a limit rib 321 is further arranged on the outside of the transfer rod 320 along the length direction, and a first channel for the transfer rod 320 and the limit rib 321 to pass through is arranged on the second housing 300. Through the cooperation of the limit rib 321 and the first channel, the transfer rod 320 can be guided and limited.
[0045] In this solution, a sealing plate 310 is arranged in the second housing 300 corresponding to the docking end face, and a second channel for the transfer rod 320 and the limit rib 321 to pass through is arranged on the sealing plate 310. Through the cooperation of the limit rib 321 and the second channel, the transfer rod 320 can be guided and limited.
[0046] Wherein, the sensor includes a bracket 200, the bracket 200 is fixed in the first housing 100, the bracket 200 is hollow, an induction core 220 is slidably arranged in the bracket 200, the first end of the induction core 220 is fixed to the rod body 222, the second end of the induction core 220 is connected with a second spring 221, and one end of the second spring 221 far away from the induction core 220 abuts against the inner wall of the end of the first housing 100.
[0047] Further, the sensor further includes an induction coil 210, the induction coil 210 is wound on the bracket 200, and the induction coil 210 is distributed along the inner wall of the first housing 100.
[0048] The induction coil 210 and the induction core 220 in this embodiment are structures that already exist in the prior art, and their implementation principles and usage methods will not be elaborated herein.
[0049] As Figure 1 shown, the first housing 100 is provided with a maintenance cover 110 corresponding to the end of the second spring 221, and the second spring 221 abuts against the maintenance cover 110. The maintenance cover 110 can be detachably connected to the first housing 100 by means of screws or the like.
[0050] After the maintenance cover 110 is opened, some components inside the first housing 100 can be removed, and new corresponding components can be assembled in place from the position where the maintenance cover 110 is opened. Tightening the maintenance cover 110 can bring it to the working state.
[0051] In this solution, both the first housing 100 and the second housing 300 are cylindrical. The docking edge of the first housing 100 extends radially outward, and the docking end face of the second housing 300 extends radially outward with a fixed edge that contacts the docking edge. Through the above settings, it is convenient for the positioning and assembly of the first housing 100 and the second housing 300.
[0052] The docking edge and the fixed edge are fixed by bolts. Specifically, a plurality of opposing fixing holes are opened on the docking edge and the fixed edge, and bolts are passed through the fixing holes to fix the docking edge and the fixed edge together.
[0053] The conversion component provided in this solution is used to directly contact the outside world and transmit the dynamic changes of the outside world to the sensor, enabling the sensor to normally detect the required physical quantity. When encountering changes sufficient to damage the sensor, the safety block of the transmission rod will deform or separate to absorb kinetic energy, so that the kinetic energy received by the sensor is within a safe range, thereby ensuring the safety of the sensor. After the safety block is damaged, a new conversion component can be replaced, reducing the maintenance cost.
[0054] The present utility model proposes a mine pressure sensor for reducing mechanical damage through the above solution, which can transmit the deformation through the transmission rod and will not directly act on the sensor, making the sensor safer.
[0055] The above are only optional embodiments of this solution and are not used to limit this solution. For those skilled in the art, this solution can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this solution shall be included within the protection scope of this solution.
[0056] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0057] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present solution. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships.
[0058] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0059] In the description of the present solution, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc., are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present solution and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present solution; the orientation terms "inner, outer" refer to the inside and outside relative to the contour of each component itself.
[0060] For the convenience of description, spatial relative terms such as "above...", "on top of...", "on the upper surface of...", "above", etc., can be used herein to describe the spatial positional relationships of one device or feature to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings of the device.
[0061] For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the relative spatial descriptions used herein are interpreted accordingly.
[0062] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, so they should not be construed as limiting the scope of protection of this solution.
Claims
1. A mine pressure sensor for reducing mechanical damage, characterized in that: include: A first shell (100), wherein a sensor and an action component are fixed inside the first shell (100), the action component comprises a rod (222), a first end of the rod (222) is connected to the sensor, and a docking port is provided on the outer side of the first shell (100); A conversion assembly, the conversion assembly comprising a second shell (300) and a transmission rod (320), the second shell (300) being configured with a docking end face connected to the first shell (100), the first end of the transmission rod (320) extending from the docking end face, the second end of the transmission rod (320) extending from the surface of the second shell (300) opposite to the docking end face, a safety block (323) pressed against the rod body (222) being arranged at the position of the first end of the transmission rod (320), the safety block (323) being separated from the transmission rod (320) when the force applied to the safety block (323) is greater than a set value.
2. The mine pressure sensor for reducing mechanical damage according to claim 1, characterized in that: The transmission rod (320) is hollow and the first end of the transmission rod (320) is open, and the safety block (323) is arranged inside the transmission rod (320).
3. The mine pressure sensor for reducing mechanical damage according to claim 1, characterized in that: A first spring (322) matched with the transmission rod (320) is arranged in the second housing (300), and the first spring (322) applies a force to the transmission rod (320) away from the butt end surface.
4. The mine pressure sensor for reducing mechanical damage according to claim 3, characterized in that: A limit block is provided on the transmission rod (320), the first spring (322) is sleeved on the transmission rod (320), and one end of the first spring (322) is in contact with the limit block.
5. The mine pressure sensor for reducing mechanical damage according to claim 1, characterized in that: A limiting ridge (321) is also provided on the outside of the transmission rod (320) along the length direction, and a first channel for the transmission rod (320) and the limiting ridge (321) to pass through is provided on the second shell (300).
6. The mine pressure sensor for reducing mechanical damage according to claim 5, characterized in that: A blocking plate (310) is arranged in the second shell (300) corresponding to the butt end surface, and a second channel for the transmission rod (320) and the limiting ridge (321) to pass through is arranged on the blocking plate (310).
7. The mine pressure sensor for reducing mechanical damage according to claim 1, characterized in that: The sensor comprises a bracket (200), wherein the bracket (200) is fixed in the first shell (100), the bracket (200) is hollow, an inductive core (220) is slidably arranged in the bracket (200), a first end of the inductive core (220) is fixed to the rod (222), a second end of the inductive core (220) is connected to a second spring (221), and an end of the second spring (221) away from the inductive core (220) is pressed against an inner wall of an end of the first shell (100).
8. The mine pressure sensor for reducing mechanical damage according to claim 7, characterized in that: The sensor further comprises an induction coil (210), wherein the induction coil (210) is wound around the bracket (200), and the induction coil (210) is distributed along the inner wall of the first shell (100).
9. The mine pressure sensor for reducing mechanical damage according to claim 7, characterized in that: An inspection cover (110) is provided on the first housing (100) at an end portion corresponding to the second spring (221), and the second spring (221) is pressed tightly against the inspection cover (110).
10. The mine pressure sensor for reducing mechanical damage according to claim 1, characterized in that: The first shell (100) and the second shell (300) are both cylindrical, the docking port of the first shell (100) is provided with a docking edge extending radially outward, and the docking end surface of the second shell (300) is provided with a fixed edge extending radially outward and in contact with the docking edge.